NBC News national correspondent Peter Alexander tweeted Secret Service agents detained a male suspect "with a package" who made suspicious comments. Before that, they cleared all media and visitors from the White House's North Lawn, with "snipers seen roaming property."

Journalist Andrew Feinberg tweeted the White House went on lockdown at 10:25 a.m. Around 10 minutes later, he said people were walking outside, but a couple of minutes later were ushered back inside.

Just last week, a woman was tangled by her shoelaces trying to jump a fence at the White House and attempted a similar stunt at the Treasury Building on Sunday. Another man was recently caught jumping the fence with two cans of Mace.